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ORIGINAL RESEARCH article

Front. Oral. Health
Sec. Oral and Maxillofacial Surgery
Volume 5 - 2024 | doi: 10.3389/froh.2024.1474190
This article is part of the Research Topic Uncovering a Multidisciplinary Approach in Pediatric Dentistry View all 5 articles

Orthodontic Management of Severe Inversely Impacted Maxillary Central Incisors: A Case Series

Provisionally accepted
Yuriko Maruya Yuriko Maruya Ryoko Hino Ryoko Hino Manami Tadano Manami Tadano Seira Hoshikawa Seira Hoshikawa Shinji Otake Shinji Otake Yuta Chiba Yuta Chiba *Kan Saito Kan Saito
  • Tohoku University, Sendai, Miyagi, Japan

The final, formatted version of the article will be published soon.

    Background: Abnormal positioning and dislocation of the central incisor can disturb tooth eruption. Generally, inversely impacted maxillary central incisors do not erupt naturally. Performing traction and applied extrusion of an inversely impacted maxillary central incisor with a high inclination angle of the crown is challenging. This study aimed to examine the possibility of orthodontic treatment for severely inversely impacted maxillary central incisors in a series of case studies. Methods: The inclination angle of the tooth crown, curvature of the tooth root, and length of the formed tooth root were measured using radiography. The teeth were then fenestrated and traction was applied using a lingual arch appliance with elastics. Results: The average crown axis inclination was 113°, the degree of root curvature was 97.3°, and the root formation was 36.1%. Although the crown axis inclination and root curvature were severe, all the incisors were aligned in the correct position as vital teeth through surgical and orthodontic treatments. Conclusions: Traction should be performed in the early period of incisor development when root formation is not progressing, regardless of the tooth angle.

    Keywords: dilaceration, Maxillary central incisor, inversely impacted, Orthodontic, fenestration, Orthodontic traction, case report

    Received: 01 Aug 2024; Accepted: 07 Oct 2024.

    Copyright: © 2024 Maruya, Hino, Tadano, Hoshikawa, Otake, Chiba and Saito. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yuta Chiba, Tohoku University, Sendai, 980-8577, Miyagi, Japan

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